curl --request POST \
  --url https://api.whop.com/api/v1/experiments/{id}/end \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "findings": "Treatment lifted signups 12%, shipping it to everyone.",
  "winning_arm": "treatment"
}
'

import requests

url = "https://api.whop.com/api/v1/experiments/{id}/end"

payload = {
    "findings": "Treatment lifted signups 12%, shipping it to everyone.",
    "winning_arm": "treatment"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    findings: 'Treatment lifted signups 12%, shipping it to everyone.',
    winning_arm: 'treatment'
  })
};

fetch('https://api.whop.com/api/v1/experiments/{id}/end', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.whop.com/api/v1/experiments/{id}/end",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'findings' => 'Treatment lifted signups 12%, shipping it to everyone.',
    'winning_arm' => 'treatment'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.whop.com/api/v1/experiments/{id}/end"

	payload := strings.NewReader("{\n  \"findings\": \"Treatment lifted signups 12%, shipping it to everyone.\",\n  \"winning_arm\": \"treatment\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.whop.com/api/v1/experiments/{id}/end")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"findings\": \"Treatment lifted signups 12%, shipping it to everyone.\",\n  \"winning_arm\": \"treatment\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.whop.com/api/v1/experiments/{id}/end")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"findings\": \"Treatment lifted signups 12%, shipping it to everyone.\",\n  \"winning_arm\": \"treatment\"\n}"

response = http.request(request)
puts response.read_body

{
  "account_id": "internal",
  "assignment_seed": "verb_end_exp1768435200",
  "configuration_revision": 2,
  "control": {
    "related_resource": {
      "id": "<string>",
      "object": "app"
    }
  },
  "flag_key": "verb_end_exp",
  "id": "expt_xxxxxxxxxxxxxx",
  "name": "Verb End",
  "related_resource": {
    "id": "<string>",
    "object": "app"
  },
  "status": "ended",
  "targeting_rules": [
    {
      "conditions": [
        {
          "operator": "any",
          "type": "user_id",
          "value": "<unknown>",
          "field": "<string>"
        }
      ],
      "type": "include"
    }
  ],
  "updated_at": "2026-01-01T12:00:00.000Z",
  "variants": [
    {
      "name": "treatment",
      "weight": 50,
      "ranges": [
        [
          0,
          50
        ]
      ],
      "related_resource": {
        "id": "<string>",
        "object": "app"
      }
    }
  ],
  "bucket_by": "user",
  "created_at": "2026-01-01T12:00:00.000Z",
  "created_by": "user_xxxxxxxxxxxxxx",
  "ended_at": "2026-01-01T12:00:00.000Z",
  "feature_flag_only": false,
  "findings": "Treatment lifted conversion 8%",
  "hypothesis": "Users will convert more",
  "started_at": "2026-01-01T12:00:00.000Z",
  "winning_arm": "treatment"
}

{
  "error": {
    "message": "account_id is required",
    "type": "bad_request",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "account_id is required",
    "type": "bad_request",
    "code": "<string>"
  }
}